Lock.



- `1 ATENTBD MAR. 8,1904.

yNo. '754,280.-

G. W. GASWELL.

LOCK. APPLICATION FILED JULY 9, 190s.

3 SHEETS-SHEET 1.

N0 MODEL.

ZM J y@ PATENTBD MAR.fa,|19o4. G. w. CASWELL.

1.00K. APPLICATION FILED JULY 9, 1903.

3 SHEETS-,SHEET 2.

No MODEL.

WJTNESSES- NVENTOR zarney No. 754,280. PATBNTED MAR. 8, 1904.-

G. W. GASWBLL. Y i

. LOCK.

PPLIOATION FILED JULY 9, 190s. v N o MODEL. a SHEETS-SHEET a.

Aorney [Nl/ENTOR UNITED STATES Patented March 8, 1904.

PATENT OFFICE.

Loox.A

SPECIFICATION forming' part of LettersPatent No. 754,280, dated March 8, 1904. Application iiled July 9, 1908. Serial No. 164,842. (No model.)

To all whom 'it may concern: u

Be it known that I, GEORGE W. CAswELL, a citizen of the United States, residing at New Britain, in lthe countyv of Hartford and State of Connecticut, have invented new and useful Improvements in Locks, oi' which the following is a specification.

This invention relates to door-locksof that class which areactuated without the use of a key; and the primary object inview is to provide a door-knob with simple and eiective mechanism. whereby the latch bolt can be readily retracted without turning the knob, and thus permit the latter to be lfirmly secured to the door-casing in any desired .manner to resist looseness or noise in the actuation of the same. l

A further object of the invention is to provide means for locking the latch-bolt upon the inside without the use oi a key and in such manner as to be inoperative by the doorknob,

' the exterior of the lock.

and thereby obstruct the operation ofv those feloniously inclined from entering a house or apartment from the exterior. y

The improved lock overcomes many disadvantages residing in locks having knobs held on spindles projecting through the lockcasing and operative by turning either knob thereon in view of the fact .that said spindles quickly become worn and work loose.l Furthermore, the improved lock can be readily actuated and does not require a complex opera-a tion, and the inconvenience attending the use of a key is avoided. i'

' The inventioni'consistsin the construction and arrangement of the several parts,'wl11ch will be more fully hereinafter described and claimed.

In the drawings, Figure 1 is an elevation of a part of a' door looking toward the inner side thereof and showing theimproved lock applied thereto. Fig. 2 is a similar view of the opposite side of a part of the door, showing Fig. g3 is a horizontal section through a portion of a door and its frame and the improved lock, the latter being illustrated as secured against operation. -Fig. 4 is a view similar to Fig. 3, taken in a lower plane and showing the lock free to be operated. Fig.4 5 is an elevation of the lock-casing partially broken away to show the internal construction thereof and looking toward the inner side. Fig. 6 is a View similar'to Fig. 5 looking toward the opposite side ofthe lock-casing. Fig. `7 is a detail perspective view ofthe latch-bolt-operating slide; Fig. Sis a detail perspective view of a movable guide carried' by the operating-slide. Fig. 9 is a y detail perspective view oi` one of the knoblevers for actuating the slide. Fig. 10 is a detail perspective view of the button or head secured on the outer end of the knob-lever.

Similar numerals of reference are employed to indicate corresponding parts in the several views.- The 'numeral 1 designates a door, and 2 a frame, having a striker-plate 3. In applying the improved lock the door is formed with a transverse opening 4 at a suitable distance inward from the free edge of the door, the

said opening being intersected and crossed by a longitudinal mortise 5 to receive the lockcasing 6. v Against oppositesides oi' the door around the terminals of the opening 4 sleeves 7 are secured and held in immovable position by roses 8, the sleeves having inner flanges over which the roses extend.' Hollow knobs 9 have tubular shanks 10 rigidly held in the sleeves 7, each knob having an outer remove able cap .11, with a central 'opening '12, in which a `button 13 is movably mounted, and has a stop-flange 14 to bear against the inner side of the outer end of the cap. The button 13 projects outwardly beyond the knob to such extent that when said knob is grasped the button will be pressed inwardly and at once cause the latchbolt to be retracted and the door opened by means which will be more Jfully hereinafter referred to.

Within the lock-casing 6 an operating-slide 15 is movably mounted and-has a longitudinal slot 16 ,in the rear extremity thereof and a lockingslot 17 in the upper portion of the forward extremity. The operating-slide 15 has a boss or space projection 18 at `its rear end and a lug 19 at its forward end, the said ing to accommodate the assemblage of coperatingparts therewith and to maintain the sai floo slide inproper position in the casing. I The lockcasing will be provided with means for holding the slide in proper position in the form of pro The slide terminates at the front edge of and at` its outer end said bolt has -the usual' by its lower end.

the boss or projection 18, and in the latter in line with the slot 16 an antifrictional roller 21 is mounted. Extending rearwardly from the center of the lug 19 is a guide-rod 22,`

which is spaced outwardly from the adjacent side of the slide and engages a stop projection 23 on the inner portion of the outer side of the lock-casing, as shown by Fig. 6, and between said stop projection and the lug 19 a spring 24 is arranged andmounted on the rod 22 to thereby cause the slide 15 to return'to normal position when free or not actuated by the mechanism for withdrawing the latchbolt. A hanger 25 depends from theI lower edge of the slide 15 and is located on the outer side ofthe latter,the said hanger being of rightangular form and projected outwardly and having an inwardly-extending stud 26, carried On the stud 26'the inner end of a latch-bolt 27 is movably mounted,l

form of head 28, movable through an opening in the outer end of the lock vcasing. The latch-bolt 27 is pivoted for convenience in assembling it in the lock-casing and toobviate jamming thereof during the movements in opposite directions of the slide, and it will be understood that latch mechanisms, has some portion thereof always in engagement with the outer end of the lock-casing. In the'slot 16 a guide 294 is mounted, as clearly shown by Fig. 8, and has a vertical slot 30 opening out through the rear end thereof to provide opposite members 31, which embrace the boss or' projection 18 and a part of the opposite side of the slide 15, and through the centers of the members 31, formed by the slot 30, horizontal slots 32 are also formed, one in each member, and on the outer sides of the members are, bosses 33, jacent portions of the opposite sides of the lock-casing. The guide 29 is positioned in line withfthe opening 4, and the end wall of the slot 30 is disposedr outwardly, as clearly shown 'by Fig. 4. In this end wall of the slot 30 an antifrictional roller 34 is vertically 'disposed in position to the roller 21,t:arried by the boss 18 of the slide 15. y

The slots 32 and the openings 34 have cam extensions 36 continually projecting therethrough, the said extensions being in reverse position and individually attached to the inner ends ofv push-rods 37, having movement throu h guides 38, held within the knobs 9` and a so provided with screw-threads at their outer ends, as at 39, to removably receive the the head 28, as in ordinary lwill not become lost.

which project through openings 34 in ad' means of which the latch-bolt may be actuated without rotating the knobs 9. The cam extensions 36, as clearly shown by Fig. 9, are fiat metal plates with outer angular ends 41, to which the rods are attached, andinner compound curved beveled edges 42 running to points or reduced extremities. The reduced` vextremities of these clamp extensions are overlapped in the slots 32 and v openings 34, and

the outer edgesv 43 of the extensions are straight and .bear against the antifrictional roller 34, carried by the guide 29. The inner curved beveled edges 42' of the extensions contact with the antifrictional roller 21 in the rear wall of the slot 16 of the slide, and from this arrangement it will be seen that when either of the rods 37 .is pushed inwardly the guide 29 and slide 15 will be retracted and the latch bolt moved in the same direction, and thereby release the' door.

Means are also provided for locking the latch-bolt 27 against movement from the inner side of the door, and rfor this purpose a metallic guide 44 is inserted in the door in line with the slot 17 of the slide 15,l an opening 45 being also formed in the adjacent side of the lock-casing in alinement with the slot 1.7. A lo'cking-pin46is insertible in the guide 44 and is long enough to extend through the opening 45 into the slot 17. This pin is held by a chain 47, attached t.) the door, so that it v When the pin 46 is arl 44, as shown by Fig. 3, prevented from moving ranged in the guide the slide 15 will be .and an effectual latch-lock is produced. Itwill y be understood that the door carrying the improved latchv-lock and latch-operating means will also have the usual locking-bolt.

From the foregoing it will be seen that a very eifective yet simple means for operating the latch-bolt is provided. One of the main advantages of the improved latch construction is the rigid manner in which the knobs are retained on opposite sides of the door,. as well as the simple method of operating the push-rods ,or the rigid primary actuating-le-` of which the' push-rods form a part, and`V vers, the positive retraction by the cam extensions of Vthe 'latch-bolt and slide carrying the same. Itis also proposedto extend the screw-threads on the outer ends of the push-rods a considerable distance over the latter, so that buttons or heads of various length may be secured to said rod, and lost motion or looseness that may appear will be quickly overcome by adjusting the heads or buttns on the rods. ably applying vthe buttons or heads on the push-rods means for compensating for a variroo,

IIO

By adjust and it will be unnecessary to construct locks special vlock-casing located in this opening, and itse 'said members and bosses formed'with a slot embodying the features of the invention with proportions to accommodate Vthem to. doors of different thickness. It will be nn-` derstood, however, that changes in the proportions, dimensions, and minor details may be resorted to without departing from the spirit of the invention. f

Having thus fully described the invention,- what is claimed as new is- 1. The combination in a door-lock, of a door having a transverse opening therethrough, and formed with a mortise, extending from the edge of the door and crossing said opening, a

formed with opposite openings in the sides thereof, a spring-projected slide formed with a slot having a lateral-projection at the inner edge thereof, a latch-bolt having pivoted'relation to the slide, a guide located in said slot and constructed with Aparallel members embracing said projection and a part of the slide, these members having lateral bosses fitting in the openings in the lock-casing, and both the having alining horizontal slots therein, and spring-controlled cam devices movable through these slots in opposite directions against parts of the'slide and guide to retract the slide and latch-bolt.

2.v The combination in a door-lock, of a door having a transverse opening therethrough, and

formed with a mortise extending from the edge of the `door and crossing said opening, a lock-casing located in this opening, and itself formed with opposite openings in the sides thereof, a spring-projected slide having an angular hanger extending therefrom, and having alateral projection aty its inner edge, a latch-'bolt pivoted at its inner end to said slide, a guide located in said slot and constructed with parallel members embracing said projection and a part of the slide, ythese members having lateral bosses fitting in the openings in the lock-casing, and both the said members and bosses having alining horizontal slots therein, and spring-controlled cam devices movable through these slots in oppositel directions against parts of elle slide and guide to retract the slide and latcho t.- s The combination in a door-lock, of a door having a transverse opening therethrough, and formed with a mortise extending from the edge of the door and crossing said opening, a

ledge thereof, a

lf -edge of the lock-casing located in this opening, and itself formed .with opposite openings in the sides thereof, a spring-projected slide formed with a slot having a lateral projection at the inner latch-bolt having pivoted relation to the slide, a guide located in said slot and -constructed With parallel members embracing said projection anda part of the slide,

these members having lateral bosses fitting in the openings in the ylock-casing, and both the, said members and bosses having alining horizontal slots therein, and means for securingd the slideV against movement. A

4:. The combination in a door-lock, of a door having a transverse opening'therethrough, and formed with a mortise extending from the door and crossing said opening, a lock-casing located in this opening, and itself formed with opposite openings in the' sides thereof, a spring-projected slide having ana'n- A `gular hanger extending therefrom, and formed with a slot having a lateral proJection at its inner edge, a latch-bolt pivoted at its inner end toV said bracket, a guide located in said slot and constructedwith parallel members embracing said projections and a part of the slide, these members having lateral bosses fitting in the openings in the lock-casing, and both the said members and bosses having alinf ing horizontal slots therein, and meansfor securing the slide against movement.

5. Th combination in a door-lock, of a having a transverse opening therethrough, and

door4 formed with a mortise extending from the.

edge'of the door and lock-casing located in this opening, and'itself formed with opposite openings in the sides thereof, a spring-projected slide formed with a slot having a lateral projection-at its inner.

crossing said opening, a

edge, said projection supporting a friction- 95 roller, a latch-bolt having'pivote'd relation to the slide, a guide located in saidslot and also supporting a friction-roller and having parallel members embracing said projection' an a part ofthe slide, these members having lateral bosses fitting in the openings in the lock-casing, and both the said members and bosses having alining horizontalv slots there'- in, and spring-controlled cam devices movable threugh the slots in opposite directions between and against said friction-rollers.

In testimony whereof I aix my signature in ypresence of two witnesses.

GEORGE W. CASWELL.

Witnesses: i

J osnrn L. ERLBAND,

PATRICK RYNER.

IOO 

